Find the next number in the sequence

5 12 24 36 ?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

A man wants to cross the pit of fire which is 25 feet in length and he has 2 planks(fire resistant) 19 feet in length. How can he cross the pit of fire alive?

Before Mount Everest was discovered, what was the highest mountain in the world?

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

A landlord calls both of his sons and tells them that their horses will now decide who will transfer the inheritance. He tells them to race along the land till the end and the one whose horse will be slower will win and be the heir to all the property.

Both of them keep wandering for days but to no result. Then they ask a wise man regarding it. The man advises them on the matter after which they jump on the horses and race as fast as they can till the end. Why did they do it?

What did the wise man say?

Find the missing number in the sequence below: